//实现一个函数ex3，使用safeProp和fp.first找到user的名字的首字母
const fp = require('lodash/fp')
const {Maybe,Container} = require('./03-code')
let safeProp = fp.curry(function(x,o){
  return Maybe.of(o[x])
})
let user = { id: 2,name:'Albert' }
let ex3 = () => {
  let r = safeProp('name',user)
    .map(x=>fp.first(x))
  console.log(r)
}
ex3()
